Should I Buy This: Mad Catz MW2 Controller

Should I buy this thing? Does anyone have it? It's cheap here and I play mostly on my second Xbox where wireless doesn't matter.

PROVANTAGE: Mad Catz CD6472600MA2/04/1 Modern Warfare 2 XBOX360 Combat Controller White

CoD: Modern Warfare 2 Controller

I was reading through Robert Bowling's (fourzerotwo) Twitter feed and he asked the populous if they wanted convex or concave thumbsticks on a controller that Infinity Ward is apparently developing just for the game.

That's nuts. Sign me up.